<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
</head>
<body>
<form action="myservlet" method="get">
    账号<input type="text" name="txta">
    密码<input type="password" name="as">
   <br>
    <input type="submit" name="sub">
    
</form>
</body>
</html>